Error installing SQL Server 2008 R2 on Windows 7 32-bit: failed to find LandingPage.exe--continue?

A coworker of mine got the attached error installing SQL Server 2008 R2 on Windows 7 32-bit:
Installation error for SQL Server 2008 R2: LandingPage.exe"An error occurred creating the configuration section handler for userSettings/Microsoft.SqlServer.Configuration.LandingPage.Properties.Settings: Could not load file or assembly 'System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies.  The system cannot find the file specified.  (C:\Users\<user>\AppData\Local\Microsoft_Corporation\LandingPage.exe_StrongName_<many alphanumeric characters>\10.0.0.0\user.config"
with options of Continue and Quit.
Now, I have looked on Google and ExpertsExchange and have found several instances of this error; however, in all cases,  people are asking about how to fix the problem.  It seems to boil down to A) uninstalling/reinstalling SQL Server; B) reinstalling .NET 3.5 and/or 4.0 or C) having corrupt installation media.  The thing is, my coworker just continued.  Now, SQL Server and the applications using it seem to be working fine after just ignoring the error.

Does anyone know what happens if you just ignore the error?  Does SQL Server have subtle problems down the line because of it?  Or is the simple fact that SQL appears to be working normally sufficient evidence that the installation managed to work around the problem?

One more note: The system previously had SQL Server Developer Edition; my coworker uninstalled this and all other SQL Server items he could find in Programs and Features before installing SQL Server 2008 R2.

Thanks,
Midnight42
midnight42Asked:
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midnight42Connect With a Mentor Author Commented:
Thanks to all who posted, but the posts did not quite answer my question.  The threads involved show how to fix this problem while reinstalling SQL Server; for complicated reasons, a reinstall is unacceptable except as a last resort.  My question was, what are the consequences if we leave SQL Server installed after the error?  (The installation appeared to go normally after getting this error.)

In any case, another coworker found the answer to this question: The assembly involved can give trouble when installing on systems without U.S. English as the language; certain symbols (e.g. British pound symbols) may not display correctly.  This is unlikely to be a problem in our case, so we can simply leave SQL Server installed as is.

I am marking this question solved.
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SThayaTechnical MAnagerCommented:
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midnight42Author Commented:
As stated above, I (or rather a coworker) found the answer.  My question: What are the consequences of ignoring this error and proceeding with the installation of SQL Server?  The answer: The assembly in question can cause errors displaying symbols that are not used in U.S. English, e.g. British pound symbols, etc.  This will not be an issue with this particular installation, so ignoring the error and finishing the installation was fine with us.
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